Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface showing our new design; and,

FIG. 2 is a front view of a second embodiment thereof.

The broken lines around the Figures showing a display screen or portion thereof form no part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof with graphical user interface, as shown and described. 